The Skullforge

 is a craftable helm. It is a Tier 2 armour crafted from Charrogg reagents. The blueprint is obtained by collecting the lore item Charr-Kiln of Zaerath.

Tips

 * Using The Skullforge allows you to mount onto certain behemoths for a long period of time. It can even slay the Behemoth while mounting it the entire time.
 * Try not to use cells that increase or quickly regenerates stamina, as The Skullforge is already doing both.